A New Old Stock (NOS) stopwatch in Chronograph style from the 1960’s. Made in Switzerland by Jaquet. The central hand counts the minutes which are accumulated in the upper register. The lower register counts the hours so it can measure up to 12 hours. It can be stopped and restarted throught the upper winding crown. The small button is for resetting all hands. Inside is clean 7 jewel movement. It works great. It has a diameter of 5 cm / 2 inches.